<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head> 
  <body> 
    <script src="../node_modules/@vue/reactivity/dist/reactivity.global.js"></script>
    <script>
      let { reactive, shallowReactive, readonly, shallowReadonly } =
        VueReactivity;

      let state = shallowReadonly({ 
        name:"李四",
        age:{
            n:18
        }
       });
      state.name = 20
    </script>
  </body>
</html>
